Measurements, however, present a problem. Available concepts are not
part of a well tested theory. As pointed out a century ago by Einstein,
Podolsky and Rosen there is a paradox [1]} which
needs to be resolved (It is by no means esoteric, p.e. [2]}, [3]}). However this is not a problem of underlying Quantum Dynamics but
of the interface between Quantum Dynamics and Macroscopic Physics.
Hence there are two ways to resolve it. One can either amend or adjust
Quantum Dynamics or classical macroscopic concepts.
